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Techtrail watch altimeter is wrong?
Hello,
I bought a techtrail (highgear) watch and I find out that the altimeter goes wrong every 2-3 days after I calibrate it. For example I calibrate it at the beach on Monday and on Wednesday shows 15m at the same place.
Any suggestions? Should I calibrate it every time before I use it?
Thanks
1 Answer
- AndyLv 69 years agoFavorite Answer
Altimeters use changes in atmospheric air pressure (barometric pressure) to determine the altitude (less pressure = higher elevation). Since changes in weather can also effect the barometric pressure, altimeters must be calibrated frequently. Highgear recommends that their altimeters be calibrated daily.
See
http://www.highgear.com/support.aspx#ab_vid
and
http://www.trails.com/how_1180_calibrate-an-altime...
for more information.
